Ophthalmic mounting



w. s. SEARLES OPHTHALMIC MOUNTING Dec. 2, 1924. 1,517,685

Filed Aug. 19. 1922 AK l3 l5 'amm Wayn 0525207165 Patented Dec. 2,1924..

UNITED STATES PATENT OFFIQE.

WAYNE S. SEAR/LES, 0F PROVIDENCE, RHODE ISLAND, ASSIGNOR TO UNIVERSALOP- TIOAL CORPORATION, OF PROVIDENCE, R-HODE ISLAND, A. CORPORATION OFRHODE ISLAND.

OPHTHALMIC MGUNTING.

Application filed August 19, 1922.

To all whom it may concern:

Be it known that I, VVAYNE SEAnLns, a citizen of the United States,residing at Providence, in the county of Providence and State of RhodeIsland, have invented certain new and useful Improvements in OphthalmicMountings, of which the following is a specification.

This invention relates to improvements in the construction of ophthalmicmountings more particularly to that class of mountings commonly known asOxfords, and has for its object to provide in such a mounting a pair ofnon-metallic lens rims connected adjacent their upper edges by aresilient bridge member of non-metallic material which is adapted toapply a gripping pressure to the nose-engaging portions of the frame.

As further object of the invention is to connect a cooperating metalspring member to said bridge member.

With these and other objects in View, the invention consists of certainnovel features of construction, as will be more fully described, andparticularly pointed out in the appended claims.

Figure 1 is a side elevation of my improved eyeglass mounting.

Figure 2 is a top edge view of the mounting.

Figure 8 is an enlarged perspective view of the cooperating bridgespring removed.

It is found in practice desirable to provide a so-called Oxford type ofmounting which is constructed of non-metallic material, which comprisesa pair of lens rims connected together at their upper edgesvby aresilient bridge member which is also of non-metallic material, whichbridge is formed with sufficient resiliency to exert the proper amountof nose gripping pressure upon the nose-engaging portions of the rims,the stiffness of the bridge being such as to always maintain the framesin their extended positions and ready for innnediatc use at all timesand when made entirely of the same material as the rims the mounting isrendered handsome, attractive and distinctive in appearance, and thefollowing is a detailed description of one means by which these resultsmay be accomplished With reference to the drawings, 10 designates theframes or rims in which the lenses Serial No. 582,879.

11 are mounted, which frames are formed wholly or in part ofnon-metallic materials such as celluloid, zylonite, shell or othersuitable material and each is provided with a nose-gripping or engagingmember 12 on its inner edge which may be formed of any suitable materialthat shown being formed of the same material as that of the frames.

These rims are connected together at their upper edges by a bridgemember 13 which may be formed approximately straight if desired, withits upper edge 14L tangent with the periphery of the rim, or it may beformed in any other desired shape and this bridge is preferably formedof the same or similar material as that of the rims and may be cut withthe rims from a sheet of stock, if desired or connected thereto in anydesired manner.

This bridge shown in the drawings is a little thicker at its centerportion 15 than at its ends, the stock being such as to providesufiicient strength and resiliency to cause the nose-engaging members 12to grip the nose with sufficient tension to hold the frame in positionon the face of the wearer by a nose-gripping pressure.

In some instances it is found desirable to apply a metal spring member16 to this nonmetallic bridge portion to cooperate therewith tostrengthen the same and enhance its yieldability, that is permitting agreater bending range without breaking, the steel influencing the bridgeto return each time to normal and also to assist it in applying theproper amount of tension to the noseengaging portions of the frame.

In some instances, 1 slot the rear edge of the bridge'laterally as at 17and insert this spring endways into the slot and subsequently fill inthe entering edge of the slot or burnish the non-metallic material overthe slot to cover the spring set therein, but I do not wish to berestricted to this particular style of spring, or of this particular wayof attaching the spring to this bridge member as any style of spring maybe employed and connected to the bridge in any desired manner.

My improved mounting is very handsome and attractive in appearance andis strong and durable in construction.

The foregoing description is directed solely towards the constructionillustrated,

but I desire it to be understood that I re serve the privilege ofresorting to all the mechanical changes to Which the device issusceptible, the invention being defined and limited only by the termsof the appended claims.

I claim:

1. An ophthalmic mounting comprising a pair or" non-metallic lens rimshaving nosegripping portions and said rims being connected togetheradjacent their upper edge by a substantially tangentially-disposedresilient non-metallic bridge bar extending directly across between therims and formed structurally integral at its ends with said rims forapplying tension to said nose-gripping portions.

2. In an ophthalmic mounting, a pair of non-metalliclens rims havingnose-gripping portions and connected together adjacent their upper edgesby a non-metallic resilient 7 bridge bar, and a metal tension springembedded in and extending along the bridge to cooperate therewith andsupport the bridge against breaking When bent.

3. In an ophthalmic mounting, a pair of non-metallic lens rims connectedby a nonmetallic semi-rigid bridge, and a bar of spring metal connectedto said bridge to support the bridge in proper operating position and toassist the bridge in applying a nosegi.'ipping tension on said rims.

21-. In an ophthalmic mounting, a pair of non-metallic lens rims havingnose-gripping portions and connected by a nonanetallic resilient bridge,and a cooperating metal spring member imbedded into the stock of saidbridge to yieldably support the bridge in position to exert the desiredtension on the nose-grips.

5. An ophthalmic mounting comprising a pair of non-metallic lens rimshaving nosc gripping portions and connected together adjacent theirupper edges by a resilient non-metallic bridge, said bridge beingslotted, and a metal spring imbedded into said slot to enhance theyieldability of said bridge.

6. In an ophthalmic mounting, a pair of nonanetallic lens rims havingnose-gripping portions and connected by a non-n'ietallic resilientbridge, a metal spring member inibedded into the stock of said bridge toassist in applying tension to said nose-engaging portions, and portionsof said spring being bent out of the plane or its body portion to lockit in its imbedded position.

In testimony whereof I ailix my signature.

WAYNE S. SEARLES.

